Could not open connection to the host, on port 25 Ubuntu
I am not able to do telnet from local machine to the server, but able to ping and ssh. I am not able to send mail using smtp mail server install on the server. Please suggest me on the same.
C:\Users\Jojan>telnet 220.127.116.11 25
Connecting To 192.168.1.145...Could not open connection to the host, on port 25:
root@portal:~# telnet localhost 25
Connected to localhost.
Escape character is '^]'.
220 portal.ussoftwaregroup.com ESMTP Sendmail 8.14.4/8.14.4/Debian-4.1ubuntu1; Mon, 19 Oct 2015 16:29:56 +0530; (No UCE/UBE) logging access from: localhost(OK)-localhost [127.0.0.1]
netstat -tlnp | grep 25
tcp 0 0 127.0.0.1:25 0.0.0.0:* LISTEN 7354/sendmail: MTA: